* Re: [PATCH v4 0/2] Copy-on-write poison recovery
@ 2023-05-08 3:18 Albert E. Davies
0 siblings, 0 replies; 2+ messages in thread
From: Albert E. Davies @ 2023-05-08 3:18 UTC (permalink / raw)
To: tony.luck
Cc: akpm, christophe.leroy, dan.j.williams, glider, linmiaohe,
linux-kernel, linux-mm, linuxppc-dev, mpe, naoya.horiguchi,
npiggin, willy, xueshuai
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Get Outlook for Android<https://aka.ms/AAb9ysg>
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* [PATCH v4 0/2] Copy-on-write poison recovery
2022-10-21 20:01 [PATCH v3 " Tony Luck
@ 2022-10-31 20:10 ` Tony Luck
0 siblings, 0 replies; 2+ messages in thread
From: Tony Luck @ 2022-10-31 20:10 UTC (permalink / raw)
To: Andrew Morton
Cc: Alexander Potapenko, Naoya Horiguchi, Miaohe Lin, Matthew Wilcox,
Shuai Xue, Dan Williams, Michael Ellerman, Nicholas Piggin,
Christophe Leroy, linux-mm, linux-kernel, linuxppc-dev,
Tony Luck
Recover from poison consumption while copying pages
in the kernel for a copy-on-write fault.
Changes since v3:
1) Miaohe Lin <linmiaohe@huawei.com> pointed out that a recent change
by Alexander Potapenko <glider@google.com> to copy_user_highpage()
added a call to kmsan_unpoison_memory(). Same is needed in my cloned
copy_mc_user_highpage() ... at least in the successful case where the
page was copied with no machine checks.
2) Picked up some additional Reviewed-by and Tested-by tags.
Tony Luck (2):
mm, hwpoison: Try to recover from copy-on write faults
mm, hwpoison: When copy-on-write hits poison, take page offline
include/linux/highmem.h | 26 ++++++++++++++++++++++++++
include/linux/mm.h | 5 ++++-
mm/memory.c | 32 ++++++++++++++++++++++----------
3 files changed, 52 insertions(+), 11 deletions(-)
base-commit: 30a0b95b1335e12efef89dd78518ed3e4a71a763
--
2.37.3
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2023-05-08 3:18 [PATCH v4 0/2] Copy-on-write poison recovery Albert E. Davies
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